To specify a post-type to display instead of page then use, e.g. post:

To filter the posts by a term from a taxonomy:

To display pages that are direct children of the page with ID 24:

To display pages that are children of any depth below the page with ID 24:

To show terms from a taxonomy instead of posts and pages, e.g. Terms from the Categories taxonomy:

To show terms from the Categories taxonomy that are direct children of the term with ID of 42:

To show terms from the Categories taxonomy that are children of any depth in the tree below the term with ID of 42:

To override the alphabet used by the plugin:

To add numbers to the listing:

The numbers can also be shown before the alphabet:

You can group the numbers into a single collection for all posts beginning with a numeral:

To group the alphabet letters into a range: